package Demo1;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 34255
 * Date: 2024-06-19
 * Time: 18:03
 */
public class Test {
    public static void main(String[] args) {
        StringBuffer stringBuffer = new StringBuffer("hello");
        String str  = "hello";
        str += " world";
        System.out.println(str);
    }
}
